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Access enum inside struct


Access enum inside struct

By : Z.g
Date : November 18 2020, 03:01 PM
may help you . There are several problems with your code:
It breaks Swift's naming convention. Types, including enums, should be named in uppercase (ItemNumber). Properties, such as enum cases, should be in lowercase (item1) An enum case can represent a "raw" value, such as an Int or String. You code has a lot of switch statements to match an enum with an integer - you don't need to do that.
code :
public enum ItemNumber: Int {
    case item1 // item1 is implicitly 0
    case item2
    case item3
    case item4
    case item5
    case item6
}

public enum SectionNumber: Int {
    case section1 = 0 // section1 is explicitly 0. You can start at any value. 
    case section2
    case section3
    case section4
}

public struct Item {
    var itemNumber: ItemNumber?
    var sectionNumber: SectionNumber?
    var checkmark: Bool

    init(sectionNumber: Int, itemNumber: Int, checkmark: Bool) {
        self.itemNumber = ItemNumber(rawValue: itemNumber)
        self.sectionNumber = SectionNumber(rawValue: sectionNumber)
        self.checkmark = checkmark
    }
}
func getNumOfItemsPerSection(section: Int) -> Int {
    guard let sectionNumber = SectionNumber(rawValue: section) else { return 0 }
    return self.items.filter({ $0.sectionNumber == sectionNumber }).count
}


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define enum inside a struct which is inside a class

define enum inside a struct which is inside a class


By : radwa
Date : March 29 2020, 07:55 AM
will help you In pre-C++11, the labels of enum are not scoped (which means the labels were accessible without any qualification with the enum type!). So to make them scoped, programmers wrote those code. But in C++11, it is not needed, as you can define scoped-enum, using enum class.
So in C++11, your code would look like this:
code :
class Test 
{
public:
    enum class MethodEnum
    {
             Method1,
             Method2
    };
};
access enum class properties which defined in struct inside a function in c++

access enum class properties which defined in struct inside a function in c++


By : Fisher
Date : March 29 2020, 07:55 AM
Hope that helps How to access struct properties which defined in enum class. The error is "error: 'e' is not a class,namespace,or enumeration" , What you need is:
code :
std::istream& operator >> (std::istream& is, employee& e)
{

    is >> e.first_name;
    is >> e.last_name;

    // Read the pay kind as an integer.
    // Check to make sure that the value is acceptable.

    int payKind;
    is >> payKind;    
    if (payKind == pay_type::hourly || payKind == pay_type::salary)
    {
       e.pay_kind = static_cast<pay_type>(payKind);
    }
    else
    {
       // Deal with error condition
    }

    is >> e.pay_unit_amount;
    return is;
}
Access fields of enum struct variant wrapped with a tuple struct

Access fields of enum struct variant wrapped with a tuple struct


By : Sol Morales
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , This is because your vector and the reference element are immutable. Try this:
code :
fn main() {
    let mut x = vec![Foobar::new_foo(), Foobar::new_bar()];
    let mut i = 0;

    while i < x.len() {
        let element = &mut x[i];
        match *element {
            Foobar::Foo(Foo { ref mut a }) => { *a = 3 },
            Foobar::Bar(Bar { ref mut b }) => { *b = 4 }
        }
        i += 1
    }
}
c using enum inside struct

c using enum inside struct


By : Aoife McQuinn
Date : March 29 2020, 07:55 AM
Any of those help This is simply not possible. The C language does not support it. C requires you to do all type declarations in global space.
So you simply have to choose different name for them. You can emulate the namespace feature in C++ to by naming the types in a certain way to accomplish basically the same thing. Something like this:
code :
typedef enum {
...
} foo_name;

typedef struct {
    foo_name name;
} foo;

typedef enum {
...
} bar_name;

typedef struct {
    bar_name name;
} bar;

typedef struct {
    bar_name name;
    foo_name name;
} foobar;
Access enum value inside a method of enum class in Kotlin

Access enum value inside a method of enum class in Kotlin


By : Dvirus
Date : March 29 2020, 07:55 AM
wish help you to fix your issue You can use this and this.ordinal which returns the ordinal of this enumeration constant
Also if you do this:
code :
fun myFunc(): Any{
    val array = MyEnum.values()
    println(array[this.ordinal])
    println(this)
    return array[this.ordinal]
}
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